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Finding the Fourth Proportional to 517,792.55, 714,382.47 and 302,780.37

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Solution

The fourth proportional to 517,792.55, 714,382.47 and 302,780.37 is: 417,736.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,792.55 : 714,382.47 = 302,780.37 : x
  2. Step 2: Convert to fraction form
    517,792.55/714,382.47 = 302,780.37/x
  3. Step 3: Cross multiply
    517,792.55x = 714,382.47 × 302,780.37
  4. Step 4: Simplify right side
    517,792.55x = 216,300,988,588.11
  5. Step 5: Solve for x
    x = 216,300,988,588.11/517,792.55
  6. Step 6: Final answer
    x = 417,736.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.